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What are the three RS485 ports on the IoT Controller used for?
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What are the three RS485 ports on the IoT Controller used for?

RS485#1 is used for sensors, and there are a total of 25 data entrances.

RS485#2 is used for touchable wall switches.

RS485#3 is used for controller clustering and debugging.

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RS485 / Modbus Integration
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